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口腔癌好发于（）
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常用的台式钢筋弯曲机按传动方式不同可分为（）。
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我国在社会主义发展过程中必须经历一个特殊的初级阶段，这主要是由（）决定的。
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“公安派”的代表作家是袁宗道、袁宏道和袁中道。()
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下列关于表演游戏的指导原则，错误的是（）。
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患者，男，40岁，右下后牙咬物不适伴冷热刺激痛1年，加重2天，出现夜间痛，影响睡眠，并向半侧头部放射，且疼痛无法定位。检查右侧上、下第一磨牙面均有大面积龋洞，叩（-），松动（-），牙龈正常。为明确诊断应进行的检查是（）
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下列财务指标中，不涉及现金流量分析的指标是（）。
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Dialogue : Beautiful Packing John: Glad to see you again, Sherman. Sherman: Hi, glad to see you too. John: Please, sit down．Would you like to try our new tea? Sherman: Great! The main purpose of my visit today is to place another order of your Longjing tea．Actually, we will place regular orders from now. John: Oh, it is a good news for us．I have the confidence that our tea won't make you disappointed. Sherman: That is true．But before that, I'd like to talk something about the packing of Longjing tea. John: Did you find any problems with the packing? Sherman: No．My meaning is to improve the packing of your Longjing tea．There is no doubt that the quality of your tea is good．It is the packing that often gives the first impression on customers rather than the products themselves so we believe the packing is as important as the quality of the products themselves. John: I agree with you．But could you be in details? Sherman: Sure．Firstly, we believe the out-look of the package should attract customer．A beautiful packing is surely a great help in pushing sales．To be honest, your packing is not attractive enough to buyers. John: Do you mean the color of the design should be more bright and eye-catching7 Sherman: Eye-catching with traditional Chinese style．You see, customers even can smell your culture before they open the box and drink the tea．As you know, one function of packing is to stimulate the buyer's desire to buy. John: I'll pass your idea onto our designers and ask them to improve it. Sherman: Thank you John．Secondly, if it is possible, we would like to advise you to improve your methods of packing. John: Our packing is typical tin for tea．Any questions about this method of packing? Sherman: I am thinking about how to let your packing speak for the good quality of the tea itself．Can we find some other packing ways to show off the appealing green and sl~ape of the tea? John: We can leave an open window on packing. Sherman: You get the point. John: Thanks for your suggestion.
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上述口腔癌中发病率最低的是（）
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下列哪一项不是Ewing’s(尤文氏)肉瘤的特征()